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Digital Root Worksheet

Vedic maths trick 12: Digital roots — check any answer · Set 877 · 40 sums
TalentJR

The trick (Gunita Samuccayah): Add the digits of a number; keep adding until one digit is left (a total of 9 stays 9). For a product, multiply the digital roots of the two numbers and take the digital root of that. If your answer’s digital root is different, the answer is wrong.

NameDateTime takenScore ___ / 40
  1. 1.Digital root of 34 × 25 =
  2. 2.Digital root of 92 × 21 =
  3. 3.Digital root of 75 × 49 =
  4. 4.Digital root of 64281 =
  5. 5.Digital root of 85081 =
  6. 6.Digital root of 22 × 37 =
  7. 7.Digital root of 59208 =
  8. 8.Digital root of 44 × 48 =
  9. 9.Digital root of 31 × 47 =
  10. 10.Digital root of 71 × 29 =
  11. 11.Digital root of 75 × 35 =
  12. 12.Digital root of 56297 =
  13. 13.Digital root of 80891 =
  14. 14.Digital root of 11514 =
  15. 15.Digital root of 16 × 69 =
  16. 16.Digital root of 58 × 12 =
  17. 17.Digital root of 90764 =
  18. 18.Digital root of 29 × 49 =
  19. 19.Digital root of 19780 =
  20. 20.Digital root of 2233 =
  21. 21.Digital root of 86 × 79 =
  22. 22.Digital root of 10350 =
  23. 23.Digital root of 27 × 41 =
  24. 24.Digital root of 70880 =
  25. 25.Digital root of 26 × 63 =
  26. 26.Digital root of 57 × 80 =
  27. 27.Digital root of 20955 =
  28. 28.Digital root of 46 × 53 =
  29. 29.Digital root of 22182 =
  30. 30.Digital root of 11552 =
  31. 31.Digital root of 95 × 64 =
  32. 32.Digital root of 13468 =
  33. 33.Digital root of 22733 =
  34. 34.Digital root of 76 × 31 =
  35. 35.Digital root of 72 × 91 =
  36. 36.Digital root of 19 × 72 =
  37. 37.Digital root of 13736 =
  38. 38.Digital root of 7358 =
  39. 39.Digital root of 83271 =
  40. 40.Digital root of 63 × 38 =

Answer key

  1. 4
  2. 6
  3. 3
  4. 3
  5. 4
  6. 4
  7. 6
  8. 6
  9. 8
  10. 7
  11. 6
  12. 2
  13. 8
  14. 3
  15. 6
  16. 3
  17. 8
  18. 8
  19. 7
  20. 1
  21. 8
  22. 9
  23. 9
  24. 5
  25. 9
  26. 6
  27. 3
  28. 8
  29. 6
  30. 5
  31. 5
  32. 4
  33. 8
  34. 7
  35. 9
  36. 9
  37. 2
  38. 5
  39. 3
  40. 9

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